Along the shore one sometimes comes upon fresh water springs, which bubble up on the edge of the salt sea. The tides roll over them and bury them out of sight for the times, but when the brackish floods ebb again the springs are found sweet as ever. So, after the deepest sorrow should the heart’s fountains of joy be found, still pouring out their streams of gladness. Christ says much about the people having His joy, a joy which the world can neither give nor take away. He says, too, that their sorrow shall be turned into joy, meaning that the deepest joy in this world is transformed sorrow, and not the joy which has never known pain.